X-ray spectral states and metallicity in the ultraluminous X-ray sources NGC 1313 X-1 and X-2

By Pintore Fabio   Zampieri Luca  

Monthly Notices of the Royal Astronomical Society, Vol. 420, Iss. 2, 2012-02 ,pp. : 1107-1114

Oxford University Press

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Comparing spectral models for ultraluminous X-ray sources with NGC 4517 ULX1

By Walton D. J.   Gladstone J. C.   Roberts T. P.   Fabian A. C.   Caballero-Garcia M. D.   Done C.   Middleton M. J.  

Monthly Notices of the Royal Astronomical Society, Vol. 414, Iss. 2, 2011-06 ,pp. : 1011-1022

Oxford University Press

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A long-term X-ray monitoring of the ultraluminous X-ray source NGC5408X-1 with Swift reveals the presence of dips but no orbital period

By Gris F.  

Monthly Notices of the Royal Astronomical Society, Vol. 433, Iss. 2, 2013-01 ,pp. : 1023-1038

Oxford University Press

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Searching for the orbital period of the ultraluminous X-ray source NGC 1313 X-2

By Zampieri L.   Impiombato D.   Falomo R.   Grisé F.   Soria R.  

Monthly Notices of the Royal Astronomical Society, Vol. 419, Iss. 2, 2012-01 ,pp. : 1331-1337

Oxford University Press

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The X-ray Emission of NGC 1068

By Wilson A.S.  

Astrophysics and Space Science, Vol. 248, Iss. 1-2, 1997-01 ,pp. : 141-148

Springer Publishing Company

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